Water heater top cap assembly



FIG. 1 is a front perspective view of the new design for a water heater top cap assembly;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a front elevation view thereof;

FIG. 6 is a back elevation view thereof;

FIG. 7 is a right side elevation view thereof;

FIG. 8 is a left side elevation view thereof; and

FIG. 9 is a front perspective view of the water heater top cap assembly installed on a water heater; and,

FIG. 10 is a back perspective view of the water heater top cap assembly installed on a water heater.

The broken lines shown represent portions of the water heater top cap assembly and environmental portions of the water heater that form no part of the claimed design. 

CLAIM The ornamental design for a water heater top cap assembly, as shown and described. 